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sys: Fix heap disclosure in compat7 kern.proc.filedesc sysctl

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Reported by: Yuxiang Yang, Yizhou Zhao, Ao Wang, Xuewei Feng, Qi Li, and Ke Xu from Tsinghua University using GLM-5.1 from Z.ai

Reviewed by:	markj
Sponsored by:	The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D56976
This commit is contained in:
Ed Maste
2026-05-12 12:25:01 -04:00
parent a6add87b5e
commit e68433e199
1 changed files with 1 additions and 1 deletions
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sys/kern/kern_descrip.c
+1 -1
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@@ -5135,7 +5135,7 @@ sysctl_kern_proc_ofiledesc(SYSCTL_HANDLER_ARGS)
return (ENOENT); return (ENOENT);
} }
kif = malloc(sizeof(*kif), M_TEMP, M_WAITOK); kif = malloc(sizeof(*kif), M_TEMP, M_WAITOK);
okif = malloc(sizeof(*okif), M_TEMP, M_WAITOK); okif = malloc(sizeof(*okif), M_TEMP, M_WAITOK | M_ZERO);
PWDDESC_XLOCK(pdp); PWDDESC_XLOCK(pdp);
pwd = pwd_hold_pwddesc(pdp); pwd = pwd_hold_pwddesc(pdp);
if (pwd != NULL) { if (pwd != NULL) {